Abstract

This document analyzes a set of solution candidates which have been
proposed to mitigate some of the issues encountered when address
sharing is used. In particular, this document focuses on means to
reveal a host identifier when a Carrier Grade NAT (CGN) or
application proxies are involved in the path. This host identifier
must be unique to each host under the same shared IP address.
The ultimate goal is to assess the viability of proposed solutions
and hopefully to make a recommendation on the more suitable
solution(s).